hwmon: (lm75) Add support for Analog Devices ADT75

Add datasheet reference and device ID for ADT75.

The ADT75, like some other LM75 derivatives, needs to be instantiated
using methods 1, 2, or 4.
For more information see Documentation/i2c/instantiating-devices.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
diff --git a/Documentation/hwmon/lm75 b/Documentation/hwmon/lm75
index a179040..8d40d0f 100644
--- a/Documentation/hwmon/lm75
+++ b/Documentation/hwmon/lm75
@@ -32,6 +32,11 @@
     Addresses scanned: I2C 0x48 - 0x4f
     Datasheet: Publicly available at the Microchip website
                http://www.microchip.com/
+  * Analog Devices ADT75
+    Prefix: 'adt75'
+    Addresses scanned: I2C 0x48 - 0x4f
+    Datasheet: Publicly available at the Analog Devices website
+               http://www.analog.com/adt75
 
 Author: Frodo Looijaard <frodol@dds.nl>